{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["river", "area", "exact location"], "input": "-DOCSTART- Students across Houston are volunteering to help their neighbors . Heart - warming to see during such dark days https://t.co/wCngEsljnL"}
{"river": [], "area": [], "exact location": []}